SesameOp
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TRENDING TOPICS NOV 04, 2025 SesameOp: Backdoor Leveraging OpenAI API for Covert Command-and-Control Microsoft’s Incident Response team identified a stealthy backdoor, labeled SesameOp, that repurposes the OpenAI Assistants API as an off-the-shelf command-and-control channel. The implant comprises an obfuscated[.]NET loader injected into developer tooling via AppDomainManager manipulation, and